Cleaning device for rotating brushes



Sept. 21 1926.

W. T. BARKER CLEANING DEVICE FOR ROTATING BRUSHES Filed Oct. 12, 1922INVENTOR. William 2? Banker A TTORNEYS.

' card clothing or of a rotating brush X Patented Sept. 21, 1926.

UNITED I M H M S KER OF wers ievex comm n es- I f CLEANING nnvron FORno'rn'rrive nRnsH-Es,

Application filed Qctober. 12, 1922. Serial No. 594,220.

My invention relates to cleaning devices for rotating brushes,especiallyto'such devices for efficiently cleaning brushes that are.substantially cylindrical in form, as revolvmg brushes in vacuumcleaners or carpet sweepers of various types.

The cleaning of brushes of the abovementioned class has always presenteda more or less difficult problem, since they are mounted so as to ratheravoid cleaning them efficiently because of the small are of sur-- faceexposed at one time. And yet, these brushes need" cleaning often, asthey fill. up, by the nature ofv their use, with all kinds of lust,filaments, threads, hair and tufts. of

various materials. It is the purpose of this device to make possible thecleaning of the brushes without dismounting, and by manually operatedmeans.

A valuable object of this invention is to clean such brushes while thelatter. are be,- ing rotated and by holding the new device in proximityto the surface of the brush. It is also a further object to clean thebrush by contact with a maximum of the periph: eral surface of thebrush.

The details of the application of my improvement to the function soughtwill be explained as the structural description proceeds. M

The above-stated and other objects of my invention are attained bystructure illustrated in the accompanying drawings in which,

Figure 1 is a perspectlve view of my cleaning devlce, as seen from theinner surface thereof, and

Figure 2 is a transverse section of the body of the device, and asapplied to a rotating brush shown in dotted lines.

In the drawings in which similar reference characters are employed toindicate corresponding. parts throughout the several views, the letter Adesignates a sheet of other foundation for mounting large numbers ofsteel teeth B thereon, by which means the latter included with the saidsheet may be secured within a metallic frame C whose side edges F arebent over toward the said teeth to secure the latter in position on thebacking. It is a purpose of this device to make possible the easycleaning of a brush having a convex surface, such as the peripheralsurface which is illustrated in Fig. 2 in do tedl nes only. This curvedsurface can be mostreadily cleaned bya concave cleaning surface, andthesurface, ofmy device is therefore concave as shown at K in said view.

To. so mount the said teeth, the inner surface of the metal frame. Cislmade concaveand the sheet A fittedto said surface. To;

mount the cleaning agent B for manipula-j tion the device is applied toa heavy wire handle D formed by doubling the; ends of a wire striptogether and applying the spaced ends to, the. surface of thesheet nearthe. edges thereof, just outside the teeth, and then bending themetaledges F over the wire at. E. and therebyexertingpressure on the sheetsurface. The form ofthe extend-v ed handle part may be fashioned as maybe gesiaed for conveniently grasping by the.

The cleaning device is not only curved transversely but also-longitudinally as.

shown in Fig. 1, the latter-feature making possible the application ofthe concave form of the teeth or otherwise roughened surface to arotatingbrush' surface without exposing the handle and the hand graspingthe same'to the brush'being cleaned "To further secure the toothed orotherwise roughened element upon the metal frame, the ends of the latterare also bent inward as at G and H and clamped down upon the sheet A.

It is to be noted that I have thus devised a cleaning device which isitself a form of brush, and is formed in a concave fashion on the brushY vex in a longitudinal section, clearly in Fig. 1. This convexity isfor the purpose mentioned in the preceding paragraph.

The materials mentioned in the above description need not be used justas stated, as my invention does not consist 1n the selection ofmaterial, though they have been found very satisfactory for the purpose,but many changes may be made in the nature of substances used to attaina particular object, without abandoning the spirit of my invention ashere shown and described and later recited in the claims. For example,while reference is-lierein made to card clothing as the means forcleaning a brush, it is b no means essential that metal teeth shal beused orthat card clothing be the form of such metal teeth for theinstrument employed. In some cases,

side in cross section but conas shown it may be desired to lined andrecited in the claims.

It is also to be noted that I am by no means restricted to theparticular form of handle shown and described. Any handle element may beused that can be applied upon the edges of the sheet and pressed thereonby the bent over strips F of the frame.

The form of metal used for the frame C may Well be aluminum or some ofits alloys,

but in some cases other metal may be sub-- stituted therefor.

Having described my invention, What I desire tosecure by Letters Patentand What I claim is, r

1. A brush cleaning device'comprising an elongated, curved supportingsheet, metal teeth mounted on the concave surface of the sheet, a rigid,metallic frame member secured to the side edges of said sheet adjacentits tooth surface and extending longitudinally thereof, and a Wirehandle extending from one end of the device With the Wire ends securedto the side edges of said member.

2. A cleaning device for rotating brushes comprising an elongated sheet,metallic teeth mounted uponsaid sheet, rigid means for mounting saidsheet to form a toothed, con

in' some situations it 7 4;. A cleaning device for rotating brushescomprising a sheet, metallic teeth mounted on said sheet, a metallicbacking for mounting said sheet to provide a toothed surface concave incross section and convex in longitudinal section, a bent rod serving asa supporting handle for the device, the spaced rod ends being secured tothe edges of said sheet, and the edges of said backing being bent upover the rod ends and clamped down on the sheet edges.

, 5. A brush cleaning device comprising a support having a surfaceprovided with metallic teeth, said surface being concave in crosssection and convex in a longitudinal section, whereby the device Willcontact the surface of a curved brush to be cleaned over an appreciablearc, and yet permit one end of the device to be grasped by the operatorshand Without contacting the surface of said brush.

In testimony whereof I hereunto atfix my signature. Y

WILLIAM THOMAS BARKER.

